Product Overview This aftermarket replacement headlight socket wiring harness is designed for H4, HB2, and 9003 applications. The 2-piece set provides socket components for connecting compatible car light bulbs within the vehicle lighting system. Key Features Aftermarket replacement headlight socket Wiring harness pigtail design Applications for H4, HB2, and 9003 bulbs 2-piece quantity Compatibility & Fitment H4 HB2 9003 Product Details Product Type: Headlight socket wiring harness Quantity: 2PCS Application: H4, HB2, and 9003 Frequently Asked Questions Q: What is this product used for? A: It is used as a replacement socket and wiring pigtail for compatible H4, HB2, and 9003 car light applications. Q: How can I verify fitment before purchase? A: Confirm that your vehicle lighting application uses an H4, HB2, or 9003 socket and compare the existing part before ordering. This is an aftermarket replacement part for the referenced application and is not represented as genuine or original equipment. Compatibility may vary by model, production date, serial number, or existing part number. Verify fitment before purchase.